- Plesk for Linux
After upgrading MariaDB, the MariaDB service fails to start with the following error message in
CONFIG_TEXT: [Note] InnoDB: Starting shutdown...
[ERROR] Plugin 'InnoDB' init function returned error.
[ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
[Note] Plugin 'FEEDBACK' is disabled.
[ERROR] Unknown/unsupported storage engine: InnoDB
or MariaDB service returns the following error:
# service mariadb status
ERROR! MariaDB is running but PID file could not be found
The same error may appear during Plesk upgrade or update.
MariaDB database server was not properly upgraded.
- Connect to the Plesk server via SSH.
Shut down MariaDB service:
# mysqladmin -uadmin -p`cat /etc/psa/.psa.shadow` -h127.0.0.1 --protocol=tcp shutdown
Remove the incorrect service script and reload systemctl configuration:
# rm -f /etc/init.d/mysql && systemctl daemon-reload
Start the MariaDB service:
# service mariadb restart
Enable MariaDB service start on boot:
# systemctl enable mariadb
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